Finding the Third Proportional to 748,440 and 1,599,912

Step by Step Solution

1. Step 1: Write the proportion equation
   748,440 : 1,599,912 = 1,599,912 : x
2. Step 2: Convert to fraction form
   748,440/1,599,912 = 1,599,912/x
3. Step 3: Cross multiply
   748,440x = 1,599,912 × 1,599,912
4. Step 4: Simplify right side
   748,440x = 2,559,718,407,744
5. Step 5: Solve for x
   x = 2,559,718,407,744/748,440
6. Step 6: Final answer
   x = 3,420,071.63